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Camille posted an update 8 years, 8 months ago
Neutrino detector at South pole.
https://icecube.wisc.edu/news/view/525
Go to home page for more info.
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Camille posted an update 8 years, 8 months ago
Neutrino detector at South pole.
https://icecube.wisc.edu/news/view/525
Go to home page for more info.
Now this is a curious bit of news…
Found on icecube.umd.edu website:
Nothing happens in contradiction to nature, only in contradiction to what we know of it.
– Special Agent Dana Scully, the X-files
Interesting..
These statements are not my own.. I’m just cutting and splicing from Wikipedia..
I’m trying to find out why a Neutrino Observatory needs to be made, what are they looking for, and how does it work..
—————————————————————-
Astrophysics observatories using the Cherenkov technique to measure air showers are key to determine the properties of astronomical objects that emit Very High Energy gamma rays, such as supernova remnants and blazars.
The detectors must be shielded by a large shield mass, and so are constructed deep underground, or underwater. They record upward going muons in charged current muon neutrino interactions. The detectors consist of an array of photomultiplier tubes (PMTs) housed in transparent pressure spheres which are suspended in a large volume of water or ice. The PMTs record the arrival time and amplitude of the Cherenkov light emitted by muons or particle cascades. The trajectory can then usually be reconstructed by triangulation if at least three “strings” are used to detect the eventsAstrophysics observatories using the Cherenkov technique to measure air showers are key to determine the properties of astronomical objects that emit Very High Energy gamma rays, such as supernova remnants and blazars.
Neutrinos are electrically neutral leptons, (A lepton is an elementary, half-integer spin (spin 1⁄2) particle that does not undergo strong interactions.) and interact very rarely with matter. When they do react with the molecules of water in the ice, they can create charged leptons (electrons, muons, or taus). These charged leptons can, if they are energetic enough, emit Cherenkov radiation. This happens when the charged particle travels through the ice faster than the speed of light in the ice, similar to the bow shock of a boat traveling faster than the waves it crosses. This light can then be detected by photomultiplier tubes within the digital optical modules making up IceCube.
Since neutrinos are also created in the cores of stars (as a result of stellar fusion), the core can be observed using neutrino astronomy. Other sources of neutrinos- such as neutrinos released by supernovae – have been detected.
There are currently goals to detect neutrinos from other sources, such as Active Galactic Nuclei (AGN), as well as Gamma-ray bursts and Starburst galaxies.
Neutrino astronomy may also indirectly detect Dark Matter by looking for Weakly interacting massive particles. ((WIMPs) are hypothetical particles that are thought to const1tute dark matter. As of today, there exists no clear definition of a WIMP, but broadly a WIMP is a new elementary particle which interacts via gravity and any other force (or forces), potentially not part of the standard model itself, which is as weak as or weaker than the weak nuclear force, but also non-vanishing in its strength))
In November 2013 it was announced that IceCube had detected 28 neutrinos that likely originated outside of the Solar System. The IceCube project is part of the University of Wisconsin–Madison projects developed and supervised by the same inst1tution, while collaboration and funding is provided by numerous other universities and research inst1tutions worldwide
These statements are not my own.. I’m just cutting and splicing from Wikipedia..
I’m trying to find out why a Neutrino Observatory needs to be made, what are they looking for, and how does it work..
—————————————————————-
Astrophysics observatories using the Cherenkov technique to measure air showers are key to determine the properties of astronomical objects that emit Very High Energy gamma rays, such as supernova remnants and blazars.
The detectors must be shielded by a large shield mass, and so are constructed deep underground, or underwater. They record upward going muons in charged current muon neutrino interactions. The detectors consist of an array of photomultiplier tubes (PMTs) housed in transparent pressure spheres which are suspended in a large volume of water or ice. The PMTs record the arrival time and amplitude of the Cherenkov light emitted by muons or particle cascades. The trajectory can then usually be reconstructed by triangulation if at least three “strings” are used to detect the eventsAstrophysics observatories using the Cherenkov technique to measure air showers are key to determine the properties of astronomical objects that emit Very High Energy gamma rays, such as supernova remnants and blazars.
Neutrinos are electrically neutral leptons, (A lepton is an elementary, half-integer spin (spin 1⁄2) particle that does not undergo strong interactions.) and interact very rarely with matter. When they do react with the molecules of water in the ice, they can create charged leptons (electrons, muons, or taus). These charged leptons can, if they are energetic enough, emit Cherenkov radiation. This happens when the charged particle travels through the ice faster than the speed of light in the ice, similar to the bow shock of a boat traveling faster than the waves it crosses. This light can then be detected by photomultiplier tubes within the digital optical modules making up IceCube.
Since neutrinos are also created in the cores of stars (as a result of stellar fusion), the core can be observed using neutrino astronomy. Other sources of neutrinos- such as neutrinos released by supernovae – have been detected.
There are currently goals to detect neutrinos from other sources, such as Active Galactic Nuclei (AGN), as well as Gamma-ray bursts and Starburst galaxies.
Neutrino astronomy may also indirectly detect Dark Matter by looking for Weakly interacting massive particles. ((WIMPs) are hypothetical particles that are thought to const1tute dark matter. As of today, there exists no clear definition of a WIMP, but broadly a WIMP is a new elementary particle which interacts via gravity and any other force (or forces), potentially not part of the standard model itself, which is as weak as or weaker than the weak nuclear force, but also non-vanishing in its strength))
In November 2013 it was announced that IceCube had detected 28 neutrinos that likely originated outside of the Solar System. The IceCube project is part of the University of Wisconsin–Madison projects developed and supervised by the same inst1tution, while collaboration and funding is provided by numerous other universities and research inst1tutions worldwide.
https://phys.org/news/2006-01-south-pole-neutrino-detector-yield.html :
Researchers at Northeastern University and the University of California, Irvine say that scientists might soon
have evidence for extra dimensions and other exotic predictions of string theory. Early results from a
neutrino detector at the South Pole, called AMANDA, show that ghostlike particles from space could serve
as probes to a world beyond our familiar three dimensions, the research team says.
To find clues to support string theory and other bold, new theories, we need to study how matter interacts
at extreme energies,” said Anchordoqui. “Human-made particle accelerators on Earth cannot yet generate these energies,
but nature can in the form of the highest-energy neutrinos.”
n recent decades, new theories have developed – such as string theory, extra dimensions and supersymmetry –
to bridge the gap between the two most successful theories of the 20th century, general relativity and quantum mechanics.
Quantum mechanics describes three of the fundamental forces of nature: electromagnetism, strong forces
(binding atomic nuclei) and weak forces (seen in radioactivity). It is, however, incompatible with Einstein’s
general relativity, the leading description of the fourth force, gravity.
Scientists hope to find one unified theory to provide a quantum description of all four forces.
Clues to unification, scientists say, lie at extreme energies. On Earth, human-made particle accelerators
have already produced energies at which electromagnetic forces and weak forces are indistinguishable.
Scientists have ideas about how the next generation of accelerators will reveal that strong forces are
indistinguishable from the weak and electromagnetic at yet higher energies.
Yet to probe deeper to see gravity’s connection to the other three forces, still higher energies are needed.
“The neutrinos accelerated in the cosmos to energies unattainable on Earth can detect the ‘footprint’ of new physics,”
said Goldberg. “The ‘body’ responsible for the footprint can then emerge through complementary experiments at the new
generation of human-made colliders. On all fronts, it is an exciting era in high-energy physics.”
Ahhhh – Get out of here.. They’re actually looking for ways to study and prove extra dimensions.. kind of like the Brain with its 11 dimensions. And they are using the experiments to test ways to prove time travel as well.
With something called Sterile Neutrinos.. The news articel is behind this link, but you need to be a member to read it..
https://www.newscientist.com/article/mg19025521.600-at-last-a-way-to-test-time-travel/
One of the collaborators is SNOLAB whom I’ve never heard of, but for all the folks interested in “dark matter” :
https://www.snolab.ca/news/2017-08-01-novel-dark-matter-detector-taking-data-pushing-limits-snolab
Neutrino astronomy may also indirectly detect Dark Matter by looking for Weakly interacting massive particles. ((WIMPs) are hypothetical particles that are thought to const1tute dark matter. As of today, there exists no clear definition of a WIMP, but broadly a WIMP is a new elementary particle which interacts via gravity and any other force (or forces), potentially not part of the standard model itself, which is as weak as or weaker than the weak nuclear force, but also non-vanishing in its strength))